Linus Torvalds 1cf35d4771 mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts ... The mmu-gather operation 'tlb_flush_mmu()' has done two things: the actual tlb flush operation, and the batched freeing of the pages that the TLB entries pointed at. This splits the operation into separate phases, so that the forced batched flushing done by zap_pte_range() can now do the actual TLB flush while still holding the page table lock, but delay the batched freeing of all the pages to after the lock has been dropped. This in turn allows us to avoid a race condition between set_page_dirty() (as called by zap_pte_range() when it finds a dirty shared memory pte) and page_mkclean(): because we now flush all the dirty page data from the TLB's while holding the pte lock, page_mkclean() will be held up walking the (recently cleaned) page tables until after the TLB entries have been flushed from all CPU's. Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Dave Hansen <dave.hansen@intel.com> Acked-by: Hugh Dickins <hughd@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-04-25 16:05:40 -07:00
..
a.out-core.h
bugs.h
cache.h
common.lds.S	UML: normalize global variables exported by vmlinux.lds	2013-07-03 16:07:34 -07:00
dma.h	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
fixmap.h	um: use generic fixmap.h	2014-01-23 16:36:54 -08:00
irq.h
irqflags.h	um: kill system-um.h	2011-11-02 14:15:34 +01:00
Kbuild	locking/mcs: Allow architecture specific asm files to be used for contended case	2014-02-09 21:18:52 +01:00
kmap_types.h	um: remove km_type definitions	2012-07-24 15:27:31 +08:00
kvm_para.h	kvmclock: Add functions to check if the host has stopped the vm	2012-04-08 12:48:59 +03:00
mmu_context.h	um: uml_dup_mmap() relies on ->mmap_sem being held, but activate_mm() doesn't hold it	2012-03-20 21:29:50 -04:00
mmu.h	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
page.h	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
pgalloc.h	um: remove pointless include of asm/fixmap.h from asm/pgtable.h	2012-03-25 00:29:55 +01:00
pgtable-2level.h
pgtable-3level.h	um, x86: Cast to (u64 *) inside set_64bit()	2010-08-03 07:00:16 -07:00
pgtable.h	consolidate io_remap_pfn_range definitions	2013-06-29 12:46:35 +04:00
processor-generic.h	um: Removed unused attributes from thread_struct	2014-01-26 11:48:37 +01:00
ptrace-generic.h	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
setup.h
smp.h	um: get rid of pointless include "..." where include <...> will do	2012-10-09 22:28:45 +02:00
sysrq.h	um: move sysrq.h out of include/shared	2012-10-09 22:28:19 +02:00
thread_info.h	preempt: Make PREEMPT_ACTIVE generic	2013-11-13 20:21:47 +01:00
timex.h
tlb.h	mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts	2014-04-25 16:05:40 -07:00
tlbflush.h
uaccess.h	um: kill um_uaccess.h	2011-11-02 14:15:13 +01:00